OpenSearch

Using the NASA EOSDIS Common Metadata Repository

Collection Search

  • AMSU/MSU Lowstratosphere Day/Month Temperature Anomalies and Annual Cycle V6

    https://cmr.earthdata.nasa.gov/search/concepts/C1625128476-GHRC_CLOUD.xml
    Description:

    The AMSU/MSU Lowstratosphere Day/Month Temperature Anomalies and Annual Cycle V6 dataset consists of temperature anomalies and annual cycle temperatures derived from the Microwave Sounding Unit (MSU) and the Advanced Microwave Sounding Unit-A (AMSU-A) radiance data since January 1978. All products are derived for the lower stratosphere. The dataset begins on January 1, 1978 and is still currently ongoing. The data are available in netCDF-4 and ASCII formats.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -90 -180 90 180

    GHRC_CLOUD Short Name: msutls Version ID: 6 Unique ID: C1625128476-GHRC_CLOUD

  • AMSU/MSU Lowtroposphere Day/Month Temperature Anomalies and Annual Cycle V6

    https://cmr.earthdata.nasa.gov/search/concepts/C1625128413-GHRC_CLOUD.xml
    Description:

    The AMSU/MSU Lowtroposphere Day/Month Temperature Anomalies and Annual Cycle V6 dataset consists of temperature anomalies and annual cycle temperatures derived from the Microwave Sounding Unit (MSU) and the Advanced Microwave Sounding Unit-A (AMSU-A) radiance data since January 1978. All products are derived for the lower troposphere. The dataset begins on January 1, 1978 and is still currently ongoing. The data are available in netCDF-4 and ASCII formats.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -90 -180 90 180

    GHRC_CLOUD Short Name: msutlt Version ID: 6 Unique ID: C1625128413-GHRC_CLOUD

  • AMSU/MSU Midtroposphere Day/Month Temperature Anomalies and Annual Cycle V6

    https://cmr.earthdata.nasa.gov/search/concepts/C1625128464-GHRC_CLOUD.xml
    Description:

    The AMSU/MSU Midtroposphere Day/Month Temperature Anomalies and Annual Cycle V6 dataset consists of temperature anomalies and annual cycle temperatures derived from the Microwave Sounding Unit (MSU) and the Advanced Microwave Sounding Unit-A (AMSU-A) radiance data since January 1978. All products are derived for the mid-troposphere. The dataset begins on January 1, 1978 and is still currently ongoing. The data are available in netCDF-4 and ASCII formats.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -90 -180 90 180

    GHRC_CLOUD Short Name: msutmt Version ID: 6 Unique ID: C1625128464-GHRC_CLOUD

  • AMSU/MSU Tropopause Day/Month Temperature Anomalies and Annual Cycle V6

    https://cmr.earthdata.nasa.gov/search/concepts/C1625128218-GHRC_CLOUD.xml
    Description:

    The AMSU/MSU Tropopause Day/Month Temperature Anomalies and Annual Cycle V6 dataset consists of temperature anomalies and annual cycle temperatures derived from the Microwave Sounding Unit (MSU) and the Advanced Microwave Sounding Unit-A (AMSU-A) radiance data since January 1978. All products are derived for the tropopause. The dataset begins on January 1, 1978 and is still currently ongoing. The data are available in netCDF-4 and ASCII formats.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -90 -180 90 180

    GHRC_CLOUD Short Name: msuttp Version ID: 6 Unique ID: C1625128218-GHRC_CLOUD

  • AVHRR data from Eurimage

    https://cmr.earthdata.nasa.gov/search/concepts/C1214606060-SCIOPS.xml
    Description:

    The National Oceanographic and Atmospheric Administration (NOAA) has been operating its Advanced Tiros-N (ATN) series of satellites since October 1978. Carrying the Tiros Operational Vertical Sounder (TOVS), a low-data-rate atmospheric sounding package, and the Advanced Very-High Resolution Radiometer (AVHRR), these satellites were designed primarily for meteorological applications, but the AVHRR instrument, in particular, has proved very valuable in a variety of environment linked earth observation applications, such as: drought early warning regional and global vegetation monitoring snow and ice mapping dynamic oceanography hydrology geology detection of forest fires, gas flares and agricultural burning fire fuel mapping volcanology air and sea pollution monitoring toxic algal bloom detection continental scale mapping (less than 1:3,000,000). Eurimage distributes AVHRR data from NOAA, acquired from the TIROS satellites and received mainly at ESA ground stations. Coverage of Europe, Africa, the Middle East and parts of the Far East is provided, as shown in the sketch map below. With at least two satellites operational at any one time, each with a daily repeat cycle, twice daily and twice nightly coverage is possible for any point on the equator and approximately double this number (8 passes in total) at mid-latitudes. TIROS / AVHRR Technical Summary Orbit Launch Altitude Inclination 1979 840 km 98.7=B0- 98.9=B0 Sensors band (=B5m) 1 2 3 4 5 AVHRR/1 .55-.90 .72-1.0 3.55-3.93 10.5-11.5 GSD (m) 1000 1000 1000 1000 AVHRR/2 .58-.68 .72-1.0 3.55-3.93 10.3-11.3 11.5-12.5 GSD (m) 1000 1000 1000 1000 1000 Scene size (km) Revisit interval 3000 x 6000 2/day at equator, 4/day at mid-latitudes GSD (m) 120 TIROS / AVHRR Orbit The TIROS satellites have a circular, polar, sun-synchronous orbit, with an altitude of approximately 840 km and an inclination of 98.7=B0 to 98.9=B0. NOAA maintain at least two operational satellites in complementary orbits, with one crossing the equator at local solar times of approximately 0730 and 1930, and the other at 0230 and 1430. By convention, the even-numbered satellites cover the 'morning orbit' (0730) and the odd-numbered satellites the 'afternoon orbit' (1430). The Advanced Very High Resolution Radiometer is a four (AVHRR/1) or five (AVHRR/2) channel passive scanning radiometer. It has one visible channel, one near-infrared, one middle-infrared, and one/two far-infrared channels. The nominal ground resolution is about 1 km. The extra channel of the AVHRR/2 (Channel 5) affords improved atmospheric correction of sea and land surface temperatures.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -35 -15 90 90

    SCIOPS Short Name: EURIMAGE_AVHRR Version ID: Not provided Unique ID: C1214606060-SCIOPS

  • AVHRR Leads-ARI Polar Gridded Brightness Temperatures, Version 1

    https://cmr.earthdata.nasa.gov/search/concepts/C1386246913-NSIDCV0.xml
    Description:

    This data set consists of AVHRR imagery selected from hard copy 'quick look' images to provide the best coverage possible over the Arctic approximately every three days for a three-year period. Level-1B data from NOAA/SDSD have been calibrated and mapped to earth locations, then gridded to 1 km pixels on a basin scale to the polar stereographic projection. The projection is similar to that used by NSIDC to produce DMSP SSM/I polar brightness temperature and sea ice products. Each image was ranked for areal coverage of particular seas and for degree of cloud coverage. Passes covering a large area are generally favored over shorter passes with less cloud cover. The data set was developed in support of the Office Of Naval Research Arctic Leads Accelerated Research Initiative (Arctic Leads ARI). The aim of the Initiative was to develop a more thorough understanding of the oceanography, meteorology, and ice dynamics surrounding formation and evolution of leads in sea ice. The leads ARI field experiment took place from March to April 1992. A spreadsheet containing the image rankings is available in hard copy (NOARL Tech. Note 118, April 1991); paper copies of the spreadsheet are available on request. Data set information is available on-line. Data are available via FTP.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: 60 -180 90 180

    NSIDCV0 Short Name: NSIDC-0026 Version ID: 1 Unique ID: C1386246913-NSIDCV0

  • Bi-Weekly and Monthly Mean SST Archive and Accumulation Files from the NOAA TIROS/N Satellite Series

    https://cmr.earthdata.nasa.gov/search/concepts/C1214419996-SCIOPS.xml
    Description:

    The Bi-Monthly SST Archive tape (SSTFLD) contains a half month archive of 1 X 1 degree satellite-derived SST fields between 70S and 70N. The tape is produced on the 2nd and the 16th of each month and contains daily fields for the previous 20 days. The tape is a 9-track, 1600 bpi, unlabeled, odd-parity, binary tape produced on an IBM 360/195 computer. The tape has two physical files, each ending with a physical end-of-file mark. The first file has only one record (physical) which contains information about the data on the tape and serves as a header file. The second file has 2851 physical records. The first record is a directory record pointing to each of twenty individual fields. Each field has 142 records. The Satellite Monthly Mean Archive tape (SSTMON) contains 12 monthly mean sea surface temperature (SST) fields for one calendar year. File two of the tape is a direct copy of the disk data set NSS.PSATAV.SST.MEANFLD. This archive is created on January 10th every year, archiving the monthly mean fields for the previous year. Data on this tape were derived exclusively from satellite data. The field has a 2.5 X 2.5 degree resolution. For each 2.5 degree box in the field there is a count of the number of observations in the box, the mean, and the standard deviation. The tape is a 9-track, 1600 bpi, unlabeled, odd-parity, binary type produced on an IBM 360/195 computer. The tape has two physical files, each ending with a physical end-of-file mark. The first file has only one record (physical) which contains information about the data on the tape and serves as a header file. The second file has 72 physical records, each containing 12 logical records, containing satellite SST monthly mean data. The Monthly Mean SST Accumulation file (MOMEAN) provides storage for a global 2.5 degree resolution accumulation of SST information leading to a monthly determination of mean SST and standard deviation within each grid box. Boxes are bordered by meridians and parallels which are multiples of 2.5 degrees in latitude and longitude, so that 4 boxes may be combined to produce boxes centered on intersections of meridians and parallels which are multiples of 5 degrees in latitude and longitude. Three quantities are stored for each grid box and are operated twice weekly with newly arrived observations. These are 1) the number of observations occurring in the box, 2) the sum of the measured temperatures, and 3) the sum of these temperatures. From these, a mean temperature and standard deviation are derived for each box at the end of each month. There are 144 X 72 = 10,368 boxes covering the globe. Each requires 3 words--N, T, T2-- or 12 bytes of storage. Seven latitudinal rows of 144 boxes will fit on one track so that 10 2/7 tracks are required each month. Four months' data will be maintained on disk so that a quarterly report can be comprised from the file directly. The fourth month makes provision for lags in processing. One directory record will be needed, and 42 tracks are required in all.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -90 -180 90 180

    SCIOPS Short Name: OSDPD0048_52_57 Version ID: Not provided Unique ID: C1214419996-SCIOPS

  • CEOS Cal Val Test Site - Algeria 3 - Pseudo-Invariant Calibration Site (PICS)

    https://cmr.earthdata.nasa.gov/search/concepts/C1220567099-USGS_LTA.xml
    Description:

    On the background of these requirements for sensor calibration, intercalibration and product validation, the subgroup on Calibration and Validation of the Committee on Earth Observing System (CEOS) formulated the following recommendation during the plenary session held in China at the end of 2004, with the goal of setting-up and operating an internet based system to provide sensor data, protocols and guidelines for these purposes: Background: Reference Datasets are required to support the understanding of climate change and quality assure operational services by Earth Observing satellites. The data from different sensors and the resulting synergistic data products require a high level of accuracy that can only be obtained through continuous traceable calibration and validation activities. Requirement: Initiate an activity to document a reference methodology to predict Top of Atmosphere (TOA) radiance for which currently flying and planned wide swath sensors can be intercompared, i.e. define a standard for traceability. Also create and maintain a fully accessible web page containing, on an instrument basis, links to all instrument characteristics needed for intercomparisons as specified above, ideally in a common format. In addition, create and maintain a database (e.g. SADE) of instrument data for specific vicarious calibration sites, including site characteristics, in a common format. Each agency is responsible for providing data for their instruments in this common format. Recommendation : The required activities described above should be supported for an implementation period of two years and a maintenance period over two subsequent years. The CEOS should encourage a member agency to accept the lead role in supporting this activity. CEOS should request all member agencies to support this activity by providing appropriate information and data in a timely manner. Pseudo-Invariant Calibration Sites (PICS): Algeria 3 is one of six CEOS reference Pseudo-Invariant Calibration Sites (PICS) that are CEOS Reference Test Sites. Besides the nominally good site characteristics (temporal stability, uniformity, homogeneity, etc.), these six PICS were selected by also taking into account their heritage and the large number of datasets from multiple instruments that already existed in the EO archives and the long history of characterization performed over these sites. The PICS have high reflectance and are usually made up of sand dunes with climatologically low aerosol loading and practically no vegetation. Consequently, these PICS can be used to evaluate the long-term stability of instrument and facilitate inter-comparison of multiple instruments.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: 29.09 5.22 31.36 10.01

    USGS_LTA Short Name: CEOS_CalVal_Test_Sites-Algeria3 Version ID: Not provided Unique ID: C1220567099-USGS_LTA

  • CEOS Cal Val Test Site - Algeria 5 - Pseudo-Invariant Calibration Site (PICS)

    https://cmr.earthdata.nasa.gov/search/concepts/C1220567104-USGS_LTA.xml
    Description:

    On the background of these requirements for sensor calibration, intercalibration and product validation, the subgroup on Calibration and Validation of the Committee on Earth Observing System (CEOS) formulated the following recommendation during the plenary session held in China at the end of 2004, with the goal of setting-up and operating an internet based system to provide sensor data, protocols and guidelines for these purposes: Background: Reference Datasets are required to support the understanding of climate change and quality assure operational services by Earth Observing satellites. The data from different sensors and the resulting synergistic data products require a high level of accuracy that can only be obtained through continuous traceable calibration and validation activities. Requirement: Initiate an activity to document a reference methodology to predict Top of Atmosphere (TOA) radiance for which currently flying and planned wide swath sensors can be intercompared, i.e. define a standard for traceability. Also create and maintain a fully accessible web page containing, on an instrument basis, links to all instrument characteristics needed for intercomparisons as specified above, ideally in a common format. In addition, create and maintain a database (e.g. SADE) of instrument data for specific vicarious calibration sites, including site characteristics, in a common format. Each agency is responsible for providing data for their instruments in this common format. Recommendation : The required activities described above should be supported for an implementation period of two years and a maintenance period over two subsequent years. The CEOS should encourage a member agency to accept the lead role in supporting this activity. CEOS should request all member agencies to support this activity by providing appropriate information and data in a timely manner. Pseudo-Invariant Calibration Sites (PICS): Algeria 5 is one of six CEOS reference Pseudo-Invariant Calibration Sites (PICS) that are CEOS Reference Test Sites. Besides the nominally good site characteristics (temporal stability, uniformity, homogeneity, etc.), these six PICS were selected by also taking into account their heritage and the large number of datasets from multiple instruments that already existed in the EO archives and the long history of characterization performed over these sites. The PICS have high reflectance and are usually made up of sand dunes with climatologically low aerosol loading and practically no vegetation. Consequently, these PICS can be used to evaluate the long-term stability of instrument and facilitate inter-comparison of multiple instruments.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: 29.24 -1.32 32.79 4.24

    USGS_LTA Short Name: CEOS_CalVal_Test_Sites-Algeria5 Version ID: Not provided Unique ID: C1220567104-USGS_LTA

  • CEOS Cal Val Test Site - Dome C, Antarctica - Instrumented Site

    https://cmr.earthdata.nasa.gov/search/concepts/C1220566821-USGS_LTA.xml
    Description:

    On the background of these requirements for sensor calibration, intercalibration and product validation, the subgroup on Calibration and Validation of the Committee on Earth Observing System (CEOS) formulated the following recommendation during the plenary session held in China at the end of 2004, with the goal of setting-up and operating an internet based system to provide sensor data, protocols and guidelines for these purposes: Background: Reference Datasets are required to support the understanding of climate change and quality assure operational services by Earth Observing satellites. The data from different sensors and the resulting synergistic data products require a high level of accuracy that can only be obtained through continuous traceable calibration and validation activities. Requirement: Initiate an activity to document a reference methodology to predict Top of Atmosphere (TOA) radiance for which currently flying and planned wide swath sensors can be intercompared, i.e. define a standard for traceability. Also create and maintain a fully accessible web page containing, on an instrument basis, links to all instrument characteristics needed for intercomparisons as specified above, ideally in a common format. In addition, create and maintain a database (e.g. SADE) of instrument data for specific vicarious calibration sites, including site characteristics, in a common format. Each agency is responsible for providing data for their instruments in this common format. Recommendation : The required activities described above should be supported for an implementation period of two years and a maintenance period over two subsequent years. The CEOS should encourage a member agency to accept the lead role in supporting this activity. CEOS should request all member agencies to support this activity by providing appropriate information and data in a timely manner. Instrumented Sites: Dome C, Antarctica is one of eight instrumented sites that are CEOS Reference Test Sites. The CEOS instrumented sites are provisionally being called LANDNET. These instrumented sites are primarily used for field campaigns to obtain radiometric gain, and these sites can serve as a focus for international efforts, facilitating traceability and inter-comparison to evaluate biases of in-flight and future instruments in a harmonized manner.  In the longer-term it is anticipated that these sites will all be fully automated and provide surface and atmospheric measurements to the WWW in an autonomous manner reducing some of the cost of a manned campaign, at present three can operate in this manner.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -76.6 123 -74.5 131.18

    USGS_LTA Short Name: CEOS_CalVal_Test_Site-Dome_C-Antarctica Version ID: Not provided Unique ID: C1220566821-USGS_LTA